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File Sensitivity and Vulnerability of Brook Trout Populations to Climate Change
Predicting future brook trout Salvelinus fontinalis distributions at the population scale under various climate scenarios is of interest to the Eastern Brook Trout Joint Venture. Previous larger scale models have been useful in highlighting the potential threat; however, the predicted air and water temperature errors associated with these models makes predictions of the persistence of individual brook trout populations problematic. We directly measured paired air and water temperatures in watersheds (N = 77) containing reproducing populations of brook trout in Virginia. We found that paired air and water temperature relationships are highly variable among patches but are a useful dataset to classify sensitivity and vulnerability of existing brook trout patches. We developed a classification system using sensitivity and vulnerability metrics that classified sampled brook trout habitats into four categories (High Sensitivity- High Vulnerability (51.9% ); High Sensitivity-Low Vulnerability (10.4 % ); Low Sensitivity-High Vulnerability (7.8 % ); Low Sensitivity-Low Vulnerability (29.9 % ). Our direct measurement approach identified potential refugia for brook trout at lower elevations and with higher air temperatures than previous larger scale modeling efforts. Our sensitivity and vulnerability groupings should be useful for managers making investment decisions in protecting and restoring brook trout.
Located in Science and Data / Brook Trout Related Publications
File September 2006 NFH Board Meeting Summary
This document summarizes the National Fish Habitat Board's September 22, 2006 inaugural meeting.
Located in About EBTJV / National Fish Habitat Board Meetings / 2006 NFH Board Meeting
File Troff document Smith Creek Headwaters Restoration, VA_FY06 Project
The Smith Creek headwaters restoration project restored riparian and upland pastures to bottomland and upland forests in an area with several spring habitats that provide critical spawning, rearing and late summer temperature refuge habitats for Brook Trout. The restored habitat connects to a small isolated Brook Trout population found upstream on protected National Forest land (Mountain Run).
Located in Projects / Project Completion Reports
File Sparta Glen Brook Restoration NJ
Project application
Located in Projects / … / 2016 Projects / Sparta Glen Brook Restoration NJ
St. Croix River Tributary Culvert Replacement,West Musquash Tributary, Grand Lake Stream, Maine
This project will improve access to a West Musquash Tributary (Otter Brook) for fish and other aquatic organisms and restore the ecological function of this stream. In addition, the project will address a chronic sedimentation problem that is detrimental to the health of the stream, the 4,200 acre Big Musquash wetlands complex, and the West Branch of the St. Croix River International Waterway. The project cost is $44,000 and the estimated socioeconomic benefit is $0.8 million.
Located in Projects / 2006 - 2018 Projects / 2018 Projects
File St. Croix River Tributary Culvert Replacement,West Musquash Trib., Grand Lake Stream, Maine
Project application
Located in Projects / … / 2018 Projects / St. Croix River Tributary Culvert Replacement,West Musquash Tributary, Grand Lake Stream, Maine
State Maps of Wild Brook Trout Patch Distribution
These state maps visually depict the location of wild Brook Trout patches.
Located in Science and Data / EBTJV Maps / EBTJV State Maps and Resources
Stream Assessment and Monitoring
Research publications related to assessing and monitoring streams.
Located in Science and Data / Brook Trout Related Publications
File ECMAScript program Summary of EBTJV Business Plan Priorities
This document summarizes the Brook Trout conservation priorities contained within the EBTJV's 2014-2018 Business Plan.
Located in About EBTJV / EBTJV Management / EBTJV Business Plan
File Troff document Sunday River "Chop and Drop", ME_FY07 Project
This project evaluated the impacts of adding large woody material to streams in order to attenuate flows and determined that adding this material resulted in positive trends in reducing flashiness of flows, improving Brook Trout habitat, and trapping sediment. However, one of the lessons learned was that a longer monitoring period than the three-year life of this project is needed. Overall, the project determined that "chop and drop" can be a relatively inexpensive and simple method to attenuate variability in flows, create, improve and restore Brook Trout habitat, and trap sediment.
Located in Projects / Project Completion Reports
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